In the novel The Secret of Chimneys, Mademoiselle Genevieve Brun was a governess who worked for the Comtesse de Breteuil at the Château de Breteuil. She later worked for Lord Caterham's family at Chimneys. In reality, the woman claiming to be Mademoiselle Brun was Angèle Mory, who kidnapped her and stole her identity.